The object of the game is to ensure that you have the same number of sheep in each paddock. To pick up a sheep in the left paddock, click on it. To drop the sheep, click again. Repeat this until you have the same number of seep in each paddock. Click on "Check Number" to see if you have done it. "Play again" will give you a new number of sheep, and "reset" will allow you to play the same number again.

This material is based upon work supported by the
National Science Foundation under Grant DUE-0226284.
Any opinions, findings, and conclusions or recommendations
expressed in this material are those of the author(s)
and do not necessarily reflect the views of the
National Science Foundation.